Improved machine for forming eyelet-stock



w To all euhowii 'may 'c'oluzernt'` mim 51mg @anni (Elmira THOMASGitarren, or PROVIDENCE, RHODE ISLAND. i

Y Letters Patent No. 104,442, dated Jane 21, 1.870.

IMIPIROVP`IISAS3H1CNE` FOR FORM-ING- EYELET-'STOCK `v Theiohedulerefen'd to in these Lettere Patent making parl: of the same.

Beit known that I, THOMAS G ARRIGK, of Provihdence, `in the county ofProvidence` and State of Rhode Island, have invented `certainImprovements 1nMachines\forPreparingEyelet-Stoclr, of which the"followingis aspeeication, reference being had to the I y accompanyingdrawing. i

i l/Iy invention relates to the manufacture of eyelets;

an i

The invention consists in a machine cti-novel? con-` struction forlslitting the sheet metal into strips of pe-` culiar form, to form whatis technically termed eyelet stock, as hereinafter morefully explained.y

`Figure lis a front elevation; "Figure2, a verticaltransversesection;and

Figure 3 an end elevation-of my improved machine. In4 manufacturingeyelets, it is customary to slit s `the sheet metal from which they are4formed into siraightstrips, after 'whichthey` are notched at interlvalsalong each edge, a large portion` of the metal be- `ing thus wasted.

My invention has for its object the cutting ofthe sheet i metal intostrips of such a form as to prevent, or greatly lessenthis waste. To dothis, I make the strips in the form represented by iig. 4, and toaecomplishths result I` construct a machine consisting of a frame, A,

having mounted thereintwo rolls, B and O, as shown i "in iig. 1, theserolls being geared together by spur.-V

wheels, D and E, as' is l usual in machines of thischarf acter.

` These rolls areformed withl a series of alternate elevations anddepresssions, the `former being repre i sented by b, and the' latter byc, of g. 1.

f These depressions are made .in the form of a row of circles, united bynarrow channels,so that, if spread ont `in a straight line, a Vrow of`them would` present the form representedby iig. 4. i l y The elevationsare the exact counterparts oi' thei depressions, they being so arrangedthat the wide part of one comes directly opposite the narrow part' oftheother, and vice versa.

. The two rolls A andvB are made precisely alike, but

are so arranged in relation to each other that the elevations on eachshall fit into the recesses or depressions of the other.

In the rear of these rolls are locatedtwo round bars or rolls, F and G,the former being provided, near Veach end, with an adjustable collar, h,which can be adjusted to fit sheets of various widths.

In opelation, the sheet of metal is brought under v the bar or roll G,thence` up over the bar or roll F,

and from thence between the slitting-rolls B and C,

which, being set in motion, cut it intolstrps of a'form corresponding tothe form of the depressions and elevations on the rolls, fig. 4representing one of the strips after being cnt.

In this manner the entire sheet isicut into strips of the form shown, bybeing once passed through the rolls, and, as the wide parts in one stripcome opposite the narrow parts of theadjoining strip, it is ob-V viousthat more strips can be had from a sheet of given width, and that thereis much less waste of material in forming the eyelets from such stripsthan when cut into strips of uniform width, according to the old pleaHaving thus described my invention, What Iclaim is- 'lhe rolls B G,provided with the elevations and depressions of the form substantiallyas described, said rolls being so arranged that the elevations on oneshall f it into the depressionson the other, for the purpose of slittingthe sheets of metal into strips, as set forth.

THOMAS GARRICK. Witnesses:

WILLIAM W. RICKARD, RoswELL R. RICKAR'D.

